buildah-mount

buildah-mount(1) General Commands Manual buildah-mount(1)

NAME

   buildah-mount - Mount a working container's root filesystem.

SYNOPSIS

   buildah mount [container ...]

DESCRIPTION

   Mounts the specified container's root file system in a location which can be accessed from the host, and returns its location.

   If the mount command is invoked without any arguments, the tool will list all of the currently mounted containers.

   When running in rootless mode, mount runs in a different namespace so that the mounted volume might not be accessible from the host when using a driver different than vfs.  To be able
   to  access  the  file system mounted, you might need to create the mount namespace separately as part of buildah unshare.  In the environment created with buildah unshare you can then
   use buildah mount and have access to the mounted file system.

RETURN VALUE

   The location of the mounted file system.  On error an empty string and errno is returned.

OPTIONS

   --json

   Output in JSON format.

EXAMPLE

   buildah mount working-container
   /var/lib/containers/storage/overlay2/f3ac502d97b5681989dff84dfedc8354239bcecbdc2692f9a639f4e080a02364/merged

   buildah mount
   working-container /var/lib/containers/storage/overlay2/f3ac502d97b5681989dff84dfedc8354239bcecbdc2692f9a639f4e080a02364/merged
   fedora-working-container /var/lib/containers/storage/overlay2/0ff7d7ca68bed1ace424f9df154d2dd7b5a125c19d887f17653cbcd5b6e30ba1/merged

   buildah mount working-container fedora-working-container ubi8-working-container
   working-container /var/lib/containers/storage/overlay/f8cac5cce73e5102ab321cc5b57c0824035b5cb82b6822e3c86ebaff69fefa9c/merged
   fedora-working-container /var/lib/containers/storage/overlay/c3ec418be5bda5b72dca74c4d397e05829fe62ecd577dd7518b5f7fc1ca5f491/merged
   ubi8-working-container /var/lib/containers/storage/overlay/03a071f206f70f4fcae5379bd5126be86b5352dc2a0c3449cd6fca01b77ea868/merged

   If running in rootless mode, you need to do a buildah unshare first to use the mount point.

   $ buildah unshare
   # buildah mount working-container
   /var/lib/containers/storage/overlay/f8cac5cce73e5102ab321cc5b57c0824035b5cb82b6822e3c86ebaff69fefa9c/merged
   # cp foobar  /var/lib/containers/storage/overlay/f8cac5cce73e5102ab321cc5b57c0824035b5cb82b6822e3c86ebaff69fefa9c/merged
   # buildah unmount working-container
   # exit
   $ buildah commit  working-container newimage